87520701 has 8 divisors (see below), whose sum is σ = 116775360. Its totient is φ = 58306592.

The previous prime is 87520679. The next prime is 87520711. The reversal of 87520701 is 10702578.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87520701 - 2⁹ = 87520189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87520711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4680 + ... + 14033.

It is an arithmetic number, because the mean of its divisors is an integer number (14596920).

Almost surely, 2^87520701 is an apocalyptic number.

It is an amenable number.

87520701 is a deficient number, since it is larger than the sum of its proper divisors (29254659).

87520701 is a wasteful number, since it uses less digits than its factorization.

87520701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20275.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 87520701 is about 9355.2499164907. The cubic root of 87520701 is about 443.9870085883.

The spelling of 87520701 in words is "eighty-seven million, five hundred twenty thousand, seven hundred one".